Cumulative Paperback Index, 1939-1959: A Comprehensive Bibliographic Guide to 14,000 Mass-Market Paperback Books of 33 Publishers Issued Under 69 Imprints

Invasion: Earth vs. the Aliens: War of Two Worlds, Book 1, Book 1

The Martians Strike Back!: War of Two Worlds, Book Three

The Cracks in the Aether

Xenograffiti: Essays on Fantastic Literature

Killingford: The Hieromonk's Tale, Book Two

Invasion! Earth Vs. the Aliens: War of Two Worlds, Book One

Science Fiction and Fantasy Literature, Vol 1

Science Fiction and Fantasy Literature Vol 2

The Martians Strike Back! War of Two Worlds, Book Three

'Ware the Dark-Haired Man: The Hieromonk's Tale, Book Three

Melanthrix the Mage: The Hieromonk’s Tale, Book 1, Book 1

The Phantom Detective: The Nasty Gnomes

Contemporary Science Fiction Authors

Operation Crimson Storm: War of Two Worlds, Book Two

R.I.P.

The Whodunit? MEGAPACK®

They

Three Tales of Omne / The Elder of Days (Wildside Double #8)

BP 250: An Annotated Bibliography of the First 250 Publications of the Borgo Press, 1975-1996